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Old 04-18-2011, 08:46 PM   #1
jjphillybrew
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Default aerate the wort?

Making a Northern Brewer Hefeweizen. Their directions say to aerate the wort while the directions from my LHBS make no mention of aerating the wort. What the deal?

Thanx!

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Old 04-18-2011, 08:47 PM   #2
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Yeast like Oxygen when getting started. Do yourself a favor and aerate the wort. You can do this by shaking the container (with a properly sealed lid), stirring vigorously with a spoon, etc. I do it before pitching the yeast. I've read about people doing it after they pitch the yeast.

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Old 04-18-2011, 08:49 PM   #3
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aerate the wort! you can probably get away with just shaking the hell out of the carboy or bucket just before or just after you pitch your yeast. a better solution is to use an aquarium pump and diffusion stone. even better, an O2 bottle and diffusion stone but for most occasions just shaking will do.

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Old 04-18-2011, 09:00 PM   #4
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The best for the beginner is to just shake the heck out of the carboy/bucket. Here's an article from the Wyeast Labs site. In it is this table.

Method-------------------DO ppm-------Time
Siphon Spray--------------4 ppm-------0 sec.
Splashing & Shaking--------8 ppm-------40 sec.
Aquarium Pump w/ stone---8 ppm-------5 min
Pure Oxygen w/ stone-----0-26ppm-------60 sec (12ppm)

Shaking give you the most O2 for the shortest amount of time without special equipment.

So, shake, shake, shake. Shake, shake, shake. Shake your carboy. Shake your carboy.

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Old 04-18-2011, 09:19 PM   #5
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Do you shake before or after pitching yeast?

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Old 04-18-2011, 09:36 PM   #6
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I shake the sh*t out of my wort before pitching the yeast...

And I shake the ever loving hell out of it after pitching the yeast.

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Old 04-18-2011, 11:03 PM   #7
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What has been working great for me is pouring the wort back and forth from the kettle to my fermenting bucket. It foams up alot, but i can see airlock activity pronto.

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Old 04-18-2011, 11:18 PM   #8
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Here's my aeration method... has worked well for me thus far:

I drain from my kettle to bottling bucket. I have a valve on my kettle so I connect a length of tubing and then shake it while it's pouring into the bucket. This aerates it a bit.

Then, I place the bottling bucket above the carboy (I use my burner since it's entirely cool by then... but you could use anything... like a chair or whatever). The valve is just barely inside the carboy at this point and then I open the valve partially to let the wort "splatter" into the carboy. This takes a while as the wort doesn't come out very fast, but it aerates the hell out of it, so it's a super easy method. I just set and forget it.

I cool wort to 80ish and by the time this process is complete, I'm right at 70-72.

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Old 04-18-2011, 11:22 PM   #9
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I usually use a wal-mart metal strainer (not super fine) inside of a funnel. This helps catch some of the leftover nasty hops and other stuff that may make their way out of the kettle following the cold-break. In addition to the strainer and funnel, I always give the caryboy 60 shakes by rocking it on my legs sitting in a chair....much less work than holding it and shaking 5.25 gallons of wort!

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Old 04-18-2011, 11:28 PM   #10
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Quote:
Originally Posted by byproxy View Post
Here's my aeration method... has worked well for me thus far:

I drain from my kettle to bottling bucket. I have a valve on my kettle so I connect a length of tubing and then shake it while it's pouring into the bucket. This aerates it a bit.

Then, I place the bottling bucket above the carboy (I use my burner since it's entirely cool by then... but you could use anything... like a chair or whatever). The valve is just barely inside the carboy at this point and then I open the valve partially to let the wort "splatter" into the carboy. This takes a while as the wort doesn't come out very fast, but it aerates the hell out of it, so it's a super easy method. I just set and forget it.

I cool wort to 80ish and by the time this process is complete, I'm right at 70-72.
that's pretty much what I do. a short peice of hose from my kettle valve to the bucket and let er rip, plus it cools down a few degrees also.
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